@import 'public.css';
.clearfix {
    display: block;
    clear: both;
    content: '';
}

nav {
    width: 100%;
    height: 80px;
    background: #fff;
    box-shadow: 0 2px 3px #dad6d6;
    vertical-align: top;
}

nav .main {
    width: 1180px;
    margin: 0 auto;
}

nav .main ul li:hover {
    background: #80C4AE;
    color: #fff;
}

nav .main ul li:hover a {
    color: #fff;
    font-size: 16px;
}

nav .logo {
    width: 179px;
    height: 53px;
    margin: 13px 0 14px 0;
}

nav ul {
    display: inline-block;
    margin-left: 120px;
    border: none;
    font-size: 0;
}

nav ul li {
    display: inline-block;
    width: 80px;
    height: 80px;
    line-height: 80px;
    margin-right: 17px;
    text-align: center;
}

nav ul li a {
    color: #333;
    font-size: 16px;
}

nav ul li:last-child {
    margin-right: 0;
}

nav ul .check {
    background: #80C4AE;
    color: #fff;
}

nav ul .check a {
    color: #fff;
    font-size: 16px;
}

nav div.search {
    display: inline-block;
    margin-left: 120px;
    border: 1px solid #80C4AE;
    border-radius: 3px;
    width: 280px;
    height: 36px;
    text-align: center;
    font-size: 0;
    padding: 0;
    overflow: hidden;
    vertical-align: middle;
    position: relative;
}

nav div.search .left {
    width: 69px;
    height: 36px;
    border-right: 1px solid #80C4AE;
    font-size: 14px;
    text-align: center;
    line-height: 36px;
    float: left;
    color: #80C4AE;
    padding: 0;
}

nav div.search .left i {
    margin-left: 6px;
    font-size: 5px;
}

nav div.search input {
    border: none;
    outline: none;
    display: inline-block;
    height: 36px;
    text-align: center;
    font-weight: 400;
    font-size: 14px;
}

nav div.search img {
    width: 20px;
    height: 20px;
    position: absolute;
    right: 7px;
    top: 8px;
}

nav .login {
    margin-left: 24px;
    display: inline-block;
    color: #80C4AE;
    font-size: 14px;
}

nav .user {
    display: inline-block;
    margin-left: 24px;
    /* display: none; */
}

nav .user img {
    width: 36px;
    height: 36px;
    border-radius: 50%;
}

nav .main .user {
    position: relative;
}

nav .main .user .userlist {
    width: 122px;
    height: 269px;
    background: url('../img/login/jx.png') no-repeat;
    background-size: cover;
    position: absolute;
    top: 35px;
    right: -15px;
    display: none;
    z-index: 99999;
}

nav .main .user .userlist ul {
    width: 122px;
    height: 100%;
    padding-top: 30px;
    margin-left: 0;
}

nav .main .user .userlist ul li {
    font-size: 16px;
    color: #333;
    line-height: 30px;
    height: 40px;
    text-align: center;
    width: 100%;
    cursor: pointer;
}

nav .main .user .userlist ul li:hover {
    background: none;
}

nav .main .user .userlist ul li:last-child {
    color: #666;
}

nav .main .user:hover .userlist {
    display: block;
}

main .banner {
    width: 1180px;
    height: 350px;
    margin: 0 auto;
    margin-top: 23px;
    position: relative;
}

main .banner .img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

main .banner .img li {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
}

main .banner .img li.active {
    opacity: 1;
}

main .banner .img li img {
    width: 100%;
    height: 100%;
}

main .banner .list {
    width: 198px;
    height: 250px;
    background: #000000;
    border-radius: 4px;
    opacity: 0.5;
    position: absolute;
    right: 20px;
    top: 50px;
    line-height: 20px;
    box-sizing: border-box;
    padding-top: 29px;
}

main .banner .list li {
    padding-left: 33px;
    height: 20px;
    font-size: 14px;
    font-weight: 600;
    color: #E4E4E4;
    line-height: 20px;
    margin-bottom: 14px;
    cursor: pointer;
}

main .banner .list li.high {
    color: #71FFDE;
    opacity: 1;
    background: url(../img/index/left.png) no-repeat 20px 6px;
}

main .online {
    width: 1180px;
    margin: 44px auto 0;
}

main .online .title {
    height: auto;
}

main .online .title span {
    width: 80px;
    height: 28px;
    font-size: 20px;
    font-weight: 400;
    color: #333;
    line-height: 28px;
    display: inline-block;
    vertical-align: middle;
}

main .online .title span.line {
    width: 6px;
    height: 20px;
    background: #74C6B3;
    margin-right: 10px;
}

main .online .title span.more {
    display: block;
    float: right;
    margin-right: 11px;
    width: auto;
    color: #74C6B3;
}

main .online .title span.more i {
    margin-left: 11px;
}

main .online .onlineCont {
    width: 1180px;
    height: auto;
}

main .online .onlineCont div.content {
    width: 1180px;
    margin: 20px auto 0;
}

main .online .onlineCont div.content ul li {
    width: 280px;
    height: 225px;
    box-shadow: 0 2px 3px #dad6d6;
    background: #fff;
    position: relative;
    overflow: hidden;
    margin: 0 20px 20px 0;
    float: left;
}

main .online .onlineCont div.content ul li:nth-child(4n) {
    margin-right: 0;
}

main .online .onlineCont div.content ul li .top {
    width: 280px;
    height: 163px;
    vertical-align: top;
    overflow: hidden;
}

main .online .onlineCont div.content ul li .top .rj {
    position: absolute;
    left: 0;
    top: 0;
    border-radius: 4px 0px 12px 0px;
    background: #000000;
    color: #000;
    display: block;
    width: 71px;
    height: 33px;
    font-size: 14px;
    line-height: 33px;
    text-align: center;
    color: #fff;
    opacity: 0.3;
}

main .online .onlineCont div.content ul li .top img.m {
    width: 280px;
    height: 163px;
}

main .online .onlineCont div.content ul li .top>p {
    position: absolute;
    bottom: 63px;
    left: 0;
    width: 100%;
    height: 33px;
    line-height: 33px;
    font-size: 14px;
    background: #000000;
    color: #fff;
    padding-left: 10px;
    opacity: 0.3;
}

main .online .onlineCont div.content ul li .bottom {
    width: 100%;
    height: 62px;
    overflow: hidden;
    line-height: 20px;
    font-size: 14px;
    color: #333;
    margin-top: 10px;
    padding-left: 10px;
}

main .online .onlineCont div.content ul li .bottom .left {
    float: left;
}

main .online .onlineCont div.content ul li .bottom .left span {
    display: block;
}

main .online .onlineCont div.content ul li .bottom .left span.time {
    margin-top: 5px;
    font-size: 14px;
    line-height: 17px;
    color: #7A7A7A;
}

main .online .onlineCont div.content ul li .bottom .right {
    float: right;
    margin-top: 12px;
    margin-right: 5px;
    width: 86px;
    height: 30px;
    line-height: 30px;
    font-size: 16px;
    color: #fff;
    background: #74C6B3;
    text-align: center;
    border-radius: 4px;
}

main .online .onlineCont div.content ul::after {
    display: block;
    content: '';
    clear: both;
    zoom: 1;
}

main .contBanner {
    width: 1180px;
    height: 186px;
    margin: 31px auto 0;
}

main .contBanner img {
    width: 100%;
    height: 100%;
}

main .testClass {
    width: 1180px;
    margin: 44px auto 0;
}

main .testClass .title {
    height: auto;
}

main .testClass .title span {
    width: 80px;
    height: 28px;
    font-size: 20px;
    font-weight: 400;
    color: #333;
    line-height: 28px;
    display: inline-block;
    vertical-align: middle;
}

main .testClass .title span.line {
    width: 6px;
    height: 20px;
    background: #74C6B3;
    margin-right: 10px;
}

main .testClass .title span.more {
    display: block;
    float: right;
    margin-right: 11px;
    width: auto;
    color: #74C6B3;
}

main .testClass .title span.more i {
    margin-left: 11px;
}

main .testClass .onlineCont {
    width: 1180px;
    height: auto;
}

main .testClass .onlineCont div.content {
    width: 1180px;
    margin: 20px auto 0;
}

main .testClass .onlineCont div.content ul li {
    width: 280px;
    height: 225px;
    box-shadow: 0 2px 3px #dad6d6;
    background: #fff;
    position: relative;
    overflow: hidden;
    margin: 0 20px 20px 0;
    float: left;
}

main .testClass .onlineCont div.content ul li:nth-child(4n) {
    margin-right: 0;
}

main .testClass .onlineCont div.content ul li .top {
    width: 280px;
    height: 163px;
    vertical-align: top;
    overflow: hidden;
}

main .testClass .onlineCont div.content ul li .top .rj {
    position: absolute;
    left: 0;
    top: 0;
    border-radius: 4px 0px 12px 0px;
    background: #000000;
    color: #000;
    display: block;
    width: 71px;
    height: 33px;
    font-size: 14px;
    line-height: 33px;
    text-align: center;
    color: #fff;
    opacity: 0.3;
}

main .testClass .onlineCont div.content ul li .top img.m {
    width: 280px;
    height: 163px;
}

main .testClass .onlineCont div.content ul li .top>p {
    position: absolute;
    bottom: 63px;
    left: 0;
    width: 100%;
    height: 33px;
    line-height: 33px;
    font-size: 14px;
    background: #000000;
    color: #fff;
    padding-left: 10px;
    opacity: 0.3;
}

main .testClass .onlineCont div.content ul li .bottom {
    width: 100%;
    height: 62px;
    overflow: hidden;
    line-height: 20px;
    font-size: 14px;
    color: #333;
    margin-top: 10px;
    padding-left: 10px;
}

main .testClass .onlineCont div.content ul li .bottom .left {
    float: left;
}

main .testClass .onlineCont div.content ul li .bottom .left span {
    display: block;
}

main .testClass .onlineCont div.content ul li .bottom .left span.time {
    margin-top: 5px;
    font-size: 14px;
    line-height: 17px;
    color: #7A7A7A;
}

main .testClass .onlineCont div.content ul li .bottom .right {
    float: right;
    margin-top: 12px;
    margin-right: 5px;
    width: 86px;
    height: 30px;
    line-height: 30px;
    font-size: 16px;
    color: #fff;
    background: #74C6B3;
    text-align: center;
    border-radius: 4px;
}

main .testClass .onlineCont div.content ul::after {
    display: block;
    content: '';
    clear: both;
    zoom: 1;
}

main .testClass .onlineCont div.content ul li {
    width: 379px;
    height: 224px;
    overflow: hidden;
}

main .testClass .onlineCont div.content ul li .top {
    width: 379px;
    height: 163px;
}

main .testClass .onlineCont div.content ul li .top img.m {
    width: 100%;
    height: 163px;
}

main .testClass .onlineCont div.content ul li .top p {
    padding-right: 28px;
}

main .testClass .onlineCont div.content ul li .top span:nth-child(1) {
    display: block;
    float: right;
    font-size: 12px;
}

main .testClass .onlineCont div.content ul li .top span:nth-child(2) {
    display: block;
    float: left;
}

main .testClass .onlineCont div.content ul li .bottom div.left {
    width: 140px;
}

main .testClass .onlineCont div.content ul li:nth-child(3n) {
    margin-right: 0;
}

main .testClass .onlineCont div.content ul li:nth-child(4n) {
    margin-right: 20px;
}

main .goodClass {
    width: 1180px;
    margin: 44px auto 0;
}

main .goodClass .title {
    height: auto;
}

main .goodClass .title span {
    width: 80px;
    height: 28px;
    font-size: 20px;
    font-weight: 400;
    color: #333;
    line-height: 28px;
    display: inline-block;
    vertical-align: middle;
}

main .goodClass .title span.line {
    width: 6px;
    height: 20px;
    background: #74C6B3;
    margin-right: 10px;
}

main .goodClass .title span.more {
    display: block;
    float: right;
    margin-right: 11px;
    width: auto;
    color: #74C6B3;
}

main .goodClass .title span.more i {
    margin-left: 11px;
}

main .goodClass .onlineCont {
    width: 1180px;
    height: auto;
}

main .goodClass .onlineCont div.content {
    width: 1180px;
    margin: 20px auto 0;
}

main .goodClass .onlineCont div.content ul li {
    width: 280px;
    height: 225px;
    box-shadow: 0 2px 3px #dad6d6;
    background: #fff;
    position: relative;
    overflow: hidden;
    margin: 0 20px 20px 0;
    float: left;
}

main .goodClass .onlineCont div.content ul li:nth-child(4n) {
    margin-right: 0;
}

main .goodClass .onlineCont div.content ul li .top {
    width: 280px;
    height: 163px;
    vertical-align: top;
    overflow: hidden;
}

main .goodClass .onlineCont div.content ul li .top .rj {
    position: absolute;
    left: 0;
    top: 0;
    border-radius: 4px 0px 12px 0px;
    background: #000000;
    color: #000;
    display: block;
    width: 71px;
    height: 33px;
    font-size: 14px;
    line-height: 33px;
    text-align: center;
    color: #fff;
    opacity: 0.3;
}

main .goodClass .onlineCont div.content ul li .top img.m {
    width: 280px;
    height: 163px;
}

main .goodClass .onlineCont div.content ul li .top>p {
    position: absolute;
    bottom: 63px;
    left: 0;
    width: 100%;
    height: 33px;
    line-height: 33px;
    font-size: 14px;
    background: #000000;
    color: #fff;
    padding-left: 10px;
    opacity: 0.3;
}

main .goodClass .onlineCont div.content ul li .bottom {
    width: 100%;
    height: 62px;
    overflow: hidden;
    line-height: 20px;
    font-size: 14px;
    color: #333;
    margin-top: 10px;
    padding-left: 10px;
}

main .goodClass .onlineCont div.content ul li .bottom .left {
    float: left;
}

main .goodClass .onlineCont div.content ul li .bottom .left span {
    display: block;
}

main .goodClass .onlineCont div.content ul li .bottom .left span.time {
    margin-top: 5px;
    font-size: 14px;
    line-height: 17px;
    color: #7A7A7A;
}

main .goodClass .onlineCont div.content ul li .bottom .right {
    float: right;
    margin-top: 12px;
    margin-right: 5px;
    width: 86px;
    height: 30px;
    line-height: 30px;
    font-size: 16px;
    color: #fff;
    background: #74C6B3;
    text-align: center;
    border-radius: 4px;
}

main .goodClass .onlineCont div.content ul::after {
    display: block;
    content: '';
    clear: both;
    zoom: 1;
}

main .goodClass .onlineCont div.content {
    width: 884px;
    float: left;
}

main .goodClass .onlineCont div.content ul li {
    overflow: hidden;
}

main .goodClass .onlineCont div.content ul li:nth-child(3n) {
    margin-right: 0;
}

main .goodClass .onlineCont div.content ul li:nth-child(4n) {
    margin-right: 20px;
}

main .goodClass .onlineCont div.rightCont {
    width: 296px;
    height: 487px;
    float: left;
    margin-top: 20px;
    overflow: hidden;
}

main .goodClass .onlineCont div.rightCont img {
    width: 296px;
    height: 487px;
    margin-top: -6px;
}

main .goodClass .onlineCont::after {
    display: block;
    content: '';
    clear: both;
    zoom: 1;
}

main .footB {
    width: 1180px;
    height: 186px;
    margin: 31px auto 0;
    overflow: hidden;
    margin-top: 19px;
    height: 100px;
}

main .footB img {
    width: 100%;
    height: 100%;
}

main .footB div {
    width: 380px;
    height: 100px;
    margin-right: 20px;
    float: left;
}

main .footB div:last-child {
    margin-right: 0;
}

main div.fix {
    position: fixed;
    width: 70px;
    height: 220px;
    bottom: 10px;
}

main div.fix .lesson {
    width: 70px;
    height: 70px;
}

main div.fix .test {
    margin: 5px auto;
}

main div.fix img {
    width: 70px;
    height: 70px;
}

footer {
    width: 100%;
    height: 264px;
    background: #333;
    margin-top: 36px;
    padding-top: 87px;
}

footer .cont {
    width: 1180px;
    height: 100%;
    margin: 0 auto;
}

footer .cont .main {
    width: 1153px;
    height: 90px;
    color: #ccc;
    font-size: 14px;
    line-height: 18px;
    text-align: center;
    margin: 0 auto;
}

footer .cont .main p {
    margin-top: 5px;
}